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A comparison chart shows one category with bars and another with pictures. Why will fair comparison be difficult?

Answer and explanation

Correct answer: The two categories use different visual measurement systems

The governing concept is consistency in visual encoding. A comparison is most reliable when comparable values use the same type of mark, scale, and measurement rule. Bars communicate length, while pictures may be judged by area, shape, or decorative size, so viewers can compare appearance rather than data. Thus option C is correct; the other choices make absolute or irrelevant claims.

Related tags

Chart ComparisonVisual ConsistencyData CommunicationVisual CommunicationCommunication Skills IArtificial IntelligenceClass 9 Mcq

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